Searched for: author%3A%22Schramkowski%2C+G.P.%22
(1 - 7 of 7)
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Dijkstra, Y.M. (author), Schuttelaars, H.M. (author), Schramkowski, G.P. (author)
We investigate the hypothesis by Winterwerp and Wang (Ocean Dyn 63:1279–1292, 2013) that channel deepening in the Scheldt River Estuary could lead to a large increase in suspended sediment concentrations, with subsequent severe consequences to primary production and navigation. To this end, we use an idealised model to investigate the long...
journal article 2019
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Dijkstra, Y.M. (author), Schuttelaars, H.M. (author), Schramkowski, G.P. (author), Brouwer, R.L. (author)
Many estuaries are strongly modified by human interventions, including substantive channel deepening. In the Ems River Estuary (Germany and Netherlands), channel deepening between the 1960s and early 2000s coincided with an increase in the maximum near-bed suspended sediment concentration from moderate (∼1 kg/m <sup>3</sup> ) to high (&gt;10...
journal article 2019
document
Dijkstra, Y.M. (author), Schuttelaars, H.M. (author), Schramkowski, G.P. (author)
Many estuaries are strongly deepened to improve navigation, with sometimes large and poorly understood consequences to suspended sediment dynamics. To improve understanding of such large changes, we study the Ems River Estuary, where a regime shift from low to high sediment concentrations was observed after deepening. The aim of this study is...
journal article 2019
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Brouwer, R.L. (author), Schramkowski, G.P. (author), Dijkstra, Y.M. (author), Schuttelaars, H.M. (author)
Using an idealized width-averaged process-based model, the role of a mud pool on the bed and time-varying river discharge on the trapping of fine sediment is systematically investigated. For this purpose, a dynamically and physically motivated description of erodibility is presented, which relates the amount of sediment on the bed to the...
journal article 2018
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Dijkstra, Y.M. (author), Brouwer, R.L. (author), Schuttelaars, H.M. (author), Schramkowski, G.P. (author)
The iFlow modelling framework is a width-averaged model for the systematic analysis of the water motion and sediment transport processes in estuaries and tidal rivers. The distinctive solution method, a mathematical perturbation method, used in the model allows for identification of the effect of individual physical processes on the water...
journal article 2017
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Wei, X. (author), Schuttelaars, H.M. (author), Schramkowski, G.P. (author)
Understanding salt dynamics is important to adequately model salt intrusion, baroclinic forcing, and sediment transport. In this paper, the importance of the residual salt transport due to tidal advection in well-mixed tidal estuaries is studied. The water motion is resolved in a consistent way with a width-averaged analytical model, coupled to...
journal article 2016
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Schramkowski, G.P. (author), De Swart, H.E. (author), Schuttelaars, H.M. (author)
A three-dimensional numerical model with a prognostic salinity field is used to investigate the effect of a partial slip bottom boundary condition on lateral flow and sediment distribution in a transect of a tidally dominated channel. The transect has a symmetrical Gaussian cross-channel bottom profile. For a deep, well-mixed, tidally dominated...
journal article 2009
Searched for: author%3A%22Schramkowski%2C+G.P.%22
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